We do not sufficiently realise the Christian duty of Christian joy, some of us even take mortified countenances and voices in a minor key as marks of grace, and there is but little in any of us of 'the joy in the Lord' which a saint of the Old Testament had learned was our 'strength.' There is plenty of gladness amongst professing Christians, but a good many of them would resent the question, is your gladness 'in the Lord'? No doubt any deep experience in the Christian life makes us aware of much in ourselves that saddens, and may depress, and our joy in Him must always be shaded by penitent sorrow for ourselves. But that necessary element of sadness in the Christian life is not the cause why so many Christian lives have little of the buoyancy and hope and spontaneity which should mark them. The reason rather lies in the lack of true union with Christ, and habitual keeping of ourselves 'in the love of God.'
II. Paul's apology for reiteration.
He is going to give once more old and well-worn precepts which are often very tedious to the hearer, and not much less so to the speaker. He can only say that to him the repetition of familiar injunctions is not 'irksome,' and that to them it is 'safe.' The diseased craving for 'originality' in the present day tempts us all, hearers and speakers alike, and we ever need to be reminded that the staple of Christian teaching must be old truths reiterated, and that it is not time to stop proclaiming them until all men have begun to practise them. But a speaker must try to make the thousandth repetition of a truth fresh to himself, and not a wearisome form, or a dead commonplace, by freshening it to his own mind and by living on it in his own practice, and the hearers must remember that it is only the completeness of their obedience that antiquates the commandment. The most threadbare commonplace becomes a novelty when occasions for its application arise in our own lives, just as a prescription may lie long unnoticed in a drawer, but when a fever attacks its possessor it will be quickly drawn out and worth its weight in gold.
III. Paul's warning against teachers of a ceremonial religion.
It scarcely seems congruous with the tone of the rest of this letter that the preachers whom Paul so scathingly points out here had obtained any firm footing in the Philippian Church, but no doubt there, as everywhere, they had dogged Paul's footsteps, and had tried as they always did to mar his work. They had not missionary fervour or Christian energy enough to initiate efforts amongst the Gentiles so as to make them proselytes, but when Paul and his companions had made them Christians, they did their best, or their worst, to insist that they could not be truly Christians, unless they submitted to the outward sign of being Jews. Paul points a scathing finger at them when he bids the Philippians 'beware,' and he permits himself a bitter retort when he lays hold of the Jewish contemptuous word for Gentiles which stigmatised them as 'dogs,' that is profane and unclean, and hurls it back at the givers. But he is not indulging in mere bitter retorts when he brings against these teachers the definite charge that they are 'evil workers.' People who believed that an outward observance was the condition of salvation would naturally be less careful to insist upon holy living. A religion of ceremonies is not a religion of morality. Then the Apostle lets himself go in a contemptuous play of words, and refuses to recognise that these sticklers for circumcision had themselves been circumcised. 'I will not call them the circumcision, they have not been circumcised, they have only been gashed and mutilated, it has been a mere fleshly maiming.' His reason for denying the name to them is his profound belief that it belonged to true Christians. His contemptuous reference puts in a word, the principle which he definitely states in another place, 'He is not a Jew who is one outwardly; neither is that circumcision which is outward in the flesh.'